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LED7706 Datasheet(PDF) 9 Page - STMicroelectronics |
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LED7706 Datasheet(HTML) 9 Page - STMicroelectronics |
9 / 31 page LED7706 Electrical characteristics 9/31 4 Electrical characteristics Table 6. Electrical characteristics (VIN = 12 V; TA = 0 °C to 85 °C and LDO5 connected to AVCC if not otherwise specified) Symbol Parameter Test condition Min Typ Max Unit Supply section VLDO5 LDO output and IC supply voltage EN High ILDO5 = 0 mA 4.4 5 5.5 V VAVCC IIN,Q Operating quiescent current RRILIM = 51 kΩ, RBILIM = 220 kΩ, RSLOPE = 680 kΩ DIM tied to SGND. 1mA IIN,SHDN Operating current in shutdown EN low 20 30 µA VUVLO,ON LDO5 Under Voltage Lock Out upper threshold 3.8 4.0 V VUVLO,OFF LDO5 Under Voltage Lock Out lower threshold 3.3 3.6 LDO linear regulator Line regulation 6 V ≤ V IN ≤ 28 V, ILDO5 = 30 mA 25 mV LDO dropout voltage VIN = 4.3 V, ILDO5 = 10 mA 80 120 LDO maximum output current VLDO5 > VUVLO,ON 25 40 60 mA VLDO5 < VUVLO,OFF 20 30 Boost section tON,min Minimum switching on-time 200 ns fSW Default switching frequency FSW connected to AVCC 570 660 750 kHz Minimum FSW sync frequency 210 mV FSW sync input threshold 240 300 FSW sync input hysteresis 20 FSW sync min ON time 270 ns SYNC output Duty-Cycle FSW connected to AVCC (Internal oscillator selected) 34 40 % SYNC output high level ISYNC = 10 µA VAVCC -20V mV SYNC output low level ISYNC = -10 µA 20 Power switch KB LX current coefficient RBILIM = 600 kΩ 5E5 6E5 7E5 V RDSon Internal MOSFET on-resistance 280 500 m Ω |
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